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| Slotted Flat Countersunk Head Cap Screws |
| Nominal Size
or Basic Screw Diameter |
F | A | H | J | T | R | C | B | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Body Diameter |
Head Diameter |
Head Height |
Slot Width | Slot Depth | Fillet Radius |
Protrusion Above Gaging Diameter |
Gaging Dia |
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| Max | Min | Max Edge Sharp |
Min Edge Rounded or Flat |
Ref | Max | Min | Max | Min | Max | Max | Min | |||
| 1/2 | .500 | .5000 | .4930 | .875 | .791 | .210 | .106 | .091 | .103 | .068 | .200 | .071 | .049 | .756 |
| 5/8 | .6250 | .6250 | .6170 | 1.125 | 1.020 | .281 | .133 | .116 | .137 | .091 | .250 | .085 | .058 | .982 |
| 3/4 | .7500 | .7500 | .7420 | 1.375 | 1.251 | .352 | .149 | .131 | .171 | .115 | .300 | .099 | .068 | 1.208 |
| Nominal Screw Size | Nominal Screw Length | ||
|---|---|---|---|
| Up to 1 inch, Incl | Over 1 to 2-1/2, Incl | Over 2-1/2 to 6 inch, Incl | |
| 1/2 thru 3/4 | -.03 | -.06 | -.08 |
| Thread length of full form thread shall be equal to ((2 x Basic Screw Dia) + .25) With a tolerance of +.188 inch | |||
| Description | Countersunk screw with flat top surface, milled slot and a conical bearing surface with a head angle of 82 degrees. |
|---|---|
| Applications and Advantages |
For assembling close tolerance machinery where head clearance is critical. |
| Material | AISI 1006 - 1050 or equivalent steel |
| Core Hardness | Rockwell B80 - B100 |
| Tensile Strength |
74,000 psi minimum |
| Proof Load | 55,000 psi minimum |
| Plating | See plating page for plating information |
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Smith Fastener Company, A California Corporation - 3613 East Florence Avenue, Bell, California, 90201 - Phone: ( 323 ) 587-0382 and ( 800 ) 764-8488 - FAX: ( 323 ) 587-8712 - E-mail: sales@smithfast.com - Copyright © 2004 by Smith Fastener Company - Please report website problems to: WebMaster - Last updated: November 1st, 2004 http://www.smithfast.com/slottedflatcapscrews.html |